Aligning Equations in mathjax

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Align Equations in mathjax formatPermalink

37=732βˆ’1122=732122β‹…732βˆ’1732=732122732βˆ’1732=73121βˆ’1732β‰ˆ7312(1βˆ’12β‹…732)

$$\begin{align}
\sqrt{37} & = \sqrt{\frac{73^2-1}{12^2}} \\
 & = \sqrt{\frac{73^2}{12^2}\cdot\frac{73^2-1}{73^2}} \\ 
 & = \sqrt{\frac{73^2}{12^2}}\sqrt{\frac{73^2-1}{73^2}} \\
 & = \frac{73}{12}\sqrt{1 - \frac{1}{73^2}} \\ 
 & \approx \frac{73}{12}\left(1 - \frac{1}{2\cdot73^2}\right)
\end{align}$$

Inline and block format in mathjax formatPermalink

This is inline-command as inlineβˆ’format.
This is block-format:
blockβˆ’format

This is inline-command $$ inline-format $$.  
This is block-command:  
\\[ block-format \\]

reference:

mathjax align equal sign: https://www.physicsoverflow.org/15329/mathjax-basic-tutorial-and-quick-reference

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